摘要
Bamboo is considered a promising solution to mitigate climate change because of its carbon sequestration capability and versatile applications. Life cycle assessment (LCA) has been used to evaluate the environmental performance of various bamboo products. This study compared the Global Warming Potential (GWP) values of bamboo products with those of the corresponding benchmark materials (e.g., steel, concrete, plastics) through a comprehensive literature review of relevant LCA studies. The results showed that bamboo products often lead to lower GWP values. In several other cases, we also observed significant variability in the comparison results due to a wide range of assumptions regarding bamboo cultivation, processing, product manufacturing, energy supply, and choices of the LCA database adopted by the reviewed studies. We analyzed the key modeling assumptions for each life cycle stage of bamboo products and established a harmonized inventory dataset to reduce the uncertainty in modeling the processed bamboo (as a raw material for subsequently manufacturing various products). Based on the harmonized dataset, we conducted a cradle-to-gate LCA and concluded that the major contributor to the overall GWP result was electricity consumption (and associated carbon intensity of energy generation) during bamboo processing. We also concluded that future research was needed to improve the transparency, consistency, and comprehensiveness of LCA studies on bamboo products.
摘要译文
竹子被认为是缓解气候变化的有前途的解决方案，因为其碳固相能力和多功能应用。生命周期评估（LCA）已用于评估各种竹制产品的环境性能。这项研究通过对相关LCA研究的全面文献综述进行了比较竹制产品的全球变暖潜力（GWP）值（例如钢，混凝土，塑料）。结果表明，竹产物通常导致GWP值较低。在其他几种情况下，我们还观察到比较结果的显着差异，这是由于有关审查研究所采用的LCA数据库的竹制种植，加工，产品制造，能源供应以及LCA数据库的选择的广泛假设。我们分析了竹制产品的每个生命周期阶段的关键建模假设，并建立了一个协调的库存数据集，以减少对处理后的竹子建模（作为随后生产各种产品的原材料）的不确定性。根据统一的数据集，我们进行了摇篮到门口的LCA，并得出结论，造成总体GWP结果的主要贡献者是竹处理过程中的电力消耗（以及相关的能源产生碳强度）。我们还得出结论，需要未来的研究来提高LCA对竹制产品研究的透明度，一致性和全面性。
Jinlu Gan[a];Meiling Chen[a][b];Katherine Semple[a];Xiaoyu Liu[a];Chunping Dai[a];Qingshi Tu[a]PersonEnvelopeWorld. Life cycle assessment of bamboo products: Review and harmonization[J]. Science of The Total Environment, 2022,849